# -*- coding: utf-8 -*-
# TencentBlueKing is pleased to support the open source community by making
# 蓝鲸智云 - PaaS 平台 (BlueKing - PaaS System) available.
# Copyright (C) 2017 THL A29 Limited, a Tencent company. All rights reserved.
# Licensed under the MIT License (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License at
#
#     http://opensource.org/licenses/MIT
#
# Unless required by applicable law or agreed to in writing, software distributed under
# the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
# either express or implied. See the License for the specific language governing permissions and
# limitations under the License.
#
# We undertake not to change the open source license (MIT license) applicable
# to the current version of the project delivered to anyone in the future.

from rest_framework.pagination import LimitOffsetPagination


class PaginationMixin:
    """获取分页上下文的mixin"""

    paginator: LimitOffsetPagination

    def get_pagination_context(self, request):
        if isinstance(self.paginator, LimitOffsetPagination):
            return {
                "count": self.paginator.count,
                "limit": self.paginator.limit,
                "next": self.paginator.get_next_link(),
                "previous": self.paginator.get_previous_link(),
                "curPage": (self.paginator.get_offset(request) // self.paginator.limit) + 1,
            }
        raise NotImplementedError
